CN112125194A - Energy-saving driving system of ocean drilling compensation winch - Google Patents
Energy-saving driving system of ocean drilling compensation winch Download PDFInfo
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- CN112125194A CN112125194A CN202011009980.3A CN202011009980A CN112125194A CN 112125194 A CN112125194 A CN 112125194A CN 202011009980 A CN202011009980 A CN 202011009980A CN 112125194 A CN112125194 A CN 112125194A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
- B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/08—Driving gear incorporating fluid motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
- B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
- B66D5/28—Operating devices pneumatic or hydraulic specially adapted for winding gear, e.g. in mining hoists
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H33/00—Gearings based on repeated accumulation and delivery of energy
- F16H33/02—Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels
Abstract
The invention relates to an energy-saving driving system of an ocean drilling compensation winch, in particular to a driving device which is characterized by hydraulic energy recovery and electro-hydraulic control technology. The winch realizes the heave compensation function by adopting the combination of the quantitative hydraulic motors and the variable hydraulic motors, and the power between the quantitative hydraulic motors and the variable hydraulic motors is configured, so that the swash plate of the variable hydraulic motor can realize the switching between the working condition of the pump and the working condition of the motor without the zero crossing point, thereby realizing good energy-saving effect, avoiding the use of a large number of hydraulic secondary elements and saving the equipment cost. The energy recovery and storage system is composed of the flywheel and a small number of hydraulic secondary elements, the size and the direction of the inclination angle of the swash plate of the hydraulic secondary elements are adjusted in real time according to pressure signals of the constant-pressure network, the pressure in the constant-pressure network is maintained to be stable, flexible conversion and storage between hydraulic energy and kinetic energy of the flywheel are achieved, and finally storage, conversion and reutilization of the recovered hydraulic energy of the hydraulic motor of the winch are achieved.
Description
Technical Field
The invention relates to an energy-saving driving system of an ocean drilling compensation winch, in particular to a driving device which is characterized by hydraulic energy recovery and electro-hydraulic control technology.
Background
The ocean floating type drilling platform and the drilling equipment inevitably generate periodic heave motion under the influence of sea waves, so that the drilling pressure at the bottom of a well changes, the cost and the danger of drilling are increased, and the drilling efficiency is reduced. Therefore, floating drilling platforms must be equipped with heave compensation systems to stabilize the bottom hole weight-on-bit and improve the efficiency and safety of the drilling operation.
The winch heave compensation device is a high and new technology product which is researched and developed abroad in recent years. The large-scale oil company in foreign countries has developed the initiative compensation winch that adopts the alternating current variable frequency motor drive in succession, realizes heave compensation through positive and negative commentaries on classics of initiative compensation motor direct control winch, has advantages such as transmission is simple, the system is compact, compensation stroke is unrestricted. However, the winch active compensation system is a set of large-inertia and large-load motion control system, the winch drives the load to periodically rotate forwards and backwards, so that great energy consumption is caused, and the variable frequency motor has the problems of large heat generation quantity, poor explosion-proof performance and the like. Therefore, the design of the hydraulic active compensation system with the energy recovery function has important significance for reducing the energy consumption of the system, reducing the operation cost and enhancing the exploitation strength of ocean resources in China.
In addition, the hydraulic secondary regulating system adopts a constant pressure network and a volume control mode, and switches between the pump working condition and the motor working condition by controlling a hydraulic secondary element, so that the recovery of the gravitational potential energy and the inertia kinetic energy of the load is realized, and the gravitational potential energy and the inertia kinetic energy are stored in a high-pressure working gas cylinder for reutilization. However, this system has two problems: on one hand, the hydraulic secondary element depends on import and is expensive; on the other hand, the energy density of the energy storage mode of the high-pressure working gas cylinder is low, the volume is large, a large amount of working space of the platform is occupied, and the environmental protection and the safety are poor. The flywheel energy storage is a mechanical energy storage mode, and due to the characteristics of high energy density, long service life, energy conservation and environmental protection, the flywheel energy storage is gradually developed and matured in recent years, and the advantages of a hydraulic secondary element and the flywheel can be integrated by combining the hydraulic secondary element and the flywheel, so that the efficient recovery, storage and utilization of energy are realized.
Disclosure of Invention
In view of the above, the technical problems to be solved by the present invention are: the energy-saving driving system of the ocean drilling compensation winch is provided, the energy consumption of the winch active compensation system is reduced, and the energy utilization rate and the drilling work efficiency are improved.
To achieve the above object, the present invention provides: a plurality of variable hydraulic motors and a plurality of quantitative hydraulic motors are used for driving a compensation winch to complete a heave compensation function; in the compensation motion process, all the hydraulic motors work in a hydraulic constant pressure network consisting of a constant pressure variable pump and a small-sized leather bag type energy accumulator, wherein the quantitative hydraulic motor is used for bearing a part of static load of a drill string and periodically recovering and releasing the part of gravitational potential energy; the variable hydraulic motor is used for overcoming the rest static load of the drill string and the inertia load of the winch, and the power between the quantitative hydraulic motor and the variable hydraulic motor is configured, so that the torque output by the variable hydraulic motor for overcoming the static load of the drill string part is always larger than the torque output by overcoming the inertia of the winch, the swash plate of the variable hydraulic motor can realize the switching between the working condition of the pump and the working condition of the motor without the zero crossing point, and the recovery and the release of the inertia kinetic energy of the winch rotation system and the gravitational potential energy of the drill string part are realized. Meanwhile, an energy recovery and storage system is formed by the flywheel and a small amount of hydraulic secondary elements, the size and the direction of the inclination angle of the swash plate of the hydraulic secondary elements are adjusted in real time according to pressure signals of the constant pressure network, the pressure in the constant pressure network is maintained to be stable, flexible conversion and storage between hydraulic energy and kinetic energy of the flywheel are achieved, and finally storage, conversion and reutilization of recovered hydraulic energy of a hydraulic motor of the winch are achieved.
The energy-saving driving system of the offshore drilling compensation winch comprises a constant-pressure variable pump, a motor, an oil tank, a pressure sensor, an electromagnetic directional valve, an electro-hydraulic servo valve, a control hydraulic cylinder, a PLC (programmable logic controller), a motion reference unit, a rotary encoder, an inclination angle sensor, a hydraulic secondary element, a flywheel set, a power-off protection valve, a quantitative hydraulic motor, a variable hydraulic motor, a compensation winch, a hydraulic disc brake and a secondary gear reducer; wherein, the pressure sensor comprises a first pressure sensor and a second pressure sensor, the electromagnetic directional valve comprises a first electromagnetic directional valve, a second electromagnetic directional valve and a third electromagnetic directional valve, the electrohydraulic servo valve comprises a first electrohydraulic servo valve and a second electrohydraulic servo valve, the control hydraulic cylinder comprises a first control hydraulic cylinder and a second control hydraulic cylinder, the tilt sensor comprises a first tilt sensor and a second tilt sensor, the hydraulic secondary components comprise a first hydraulic secondary component and a second hydraulic secondary component, the power-off protection valve comprises a first power-off protection valve and a second power-off protection valve, the constant pressure variable pump is mechanically connected with a motor, the motion reference unit is fixed on the drilling platform, the oil inlet of the constant pressure variable pump is connected with an oil tank, the oil outlet of the constant pressure variable pump is divided into a plurality of branches after passing through a one-way valve and an oil filter, a branch is connected with P ports of a first electro-hydraulic servo valve and a second electro-hydraulic servo valve respectively after passing through a pressure reducing valve, an A port and a B port of the first electro-hydraulic servo valve are connected with a left cavity and a right cavity of a first control hydraulic cylinder respectively, an A port and a B port of the second electro-hydraulic servo valve are connected with a left cavity and a right cavity of a second control hydraulic cylinder respectively, piston rods of the first control hydraulic cylinder and the second control hydraulic cylinder are mechanically connected with a first hydraulic secondary element and a second hydraulic secondary element respectively, a first inclination angle sensor and a second inclination angle sensor are arranged on piston rods of the first control hydraulic cylinder and the second control hydraulic cylinder respectively, and the first inclination angle sensor and the second inclination angle sensor are used for detecting inclination angle signals of a swash plate of the first hydraulic secondary element and the second hydraulic secondary element respectively.
The T ports of the first electro-hydraulic servo valve and the second electro-hydraulic servo valve are connected with an oil tank; the other branch of the constant-pressure variable pump passes through a second electromagnetic directional valve and then is respectively connected with a first hydraulic secondary element and a second hydraulic secondary element, and the first hydraulic secondary element and the second hydraulic secondary element pass through a first power-loss protection valve and then are connected with a quantitative hydraulic motor; the other branch of the constant-pressure variable pump passes through a second power-off protection valve and then is connected with the variable hydraulic motor; the other branch of the constant-pressure variable pump is connected with the small-sized leather bag type energy accumulator through a first electromagnetic reversing valve; the other branch of the constant-pressure variable pump is connected with the hydraulic disc brake through a third electromagnetic directional valve and a one-way pressure reducing valve; the quantitative hydraulic motor and the variable hydraulic motor are respectively mechanically connected with an input shaft of the secondary gear reducer through a coupler, and power is transmitted to the compensation winch.
Two ends of the constant-pressure variable pump are connected with overflow valves in parallel, two ends of the quantitative hydraulic motor and two ends of the variable hydraulic motor are respectively connected with one-way overflow valves in parallel, and oil discharge ports of the quantitative hydraulic motor and the variable hydraulic motor are respectively connected with an oil tank through one-way throttle valves; a first pressure sensor is arranged on an oil outlet trunk of the constant-pressure variable pump; an oil outlet of the hydraulic secondary element is provided with a second pressure sensor; the first hydraulic secondary element and the second hydraulic secondary element are respectively and mechanically connected with the flywheel set through a coupling; and the rotary encoder is connected with an input shaft of the secondary gear reducer and is used for detecting an angular displacement signal of the compensation winch for compensating motion.
As a further improvement of the invention, the variable hydraulic motor is a common one-way variable motor, and the output torque of the motor for overcoming the static load of the drill string part is larger than the torque for overcoming the inertia output of the winch, so that the swash plate of the variable hydraulic motor can realize the switching between the working condition of the pump and the working condition of the motor without the zero crossing point.
As a further improvement of the invention, the flywheel set is arranged in the protective shell and comprises flywheel pieces, a speed increaser and electromagnetic clutches, wherein the speed increaser is connected with the flywheel pieces through the electromagnetic clutches, a PLC sends out instructions to control the connection and disconnection of the electromagnetic clutches, and the number of the flywheel pieces is switched according to different drilling working conditions.
As a further development of the invention, the speed increaser is a bevel gear speed increaser.
As a further improvement of the invention, the constant-pressure variable pump drives the first hydraulic secondary element and the second hydraulic secondary element to work under the working condition of the motor through the second electromagnetic directional valve, and the flywheel set is pre-charged before the flywheel set starts to work.
As a further improvement of the invention, the small-sized leather bag type energy accumulator is connected with an oil outlet main line of the constant-pressure variable pump and is used for stabilizing the system pressure and reducing the energy fluctuation when the mechanical energy and the hydraulic energy of the flywheel are converted.
As a further improvement of the invention, the small-sized leather bag type energy accumulator is connected with the hydraulic disc brake through the first electromagnetic reversing valve, the third electromagnetic reversing valve and the one-way pressure reducing valve to form a winch brake loop and provide power for the hydraulic disc brake of the winch brake loop.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention provides a winch energy recovery and storage system consisting of a flywheel set and a hydraulic secondary element, which can flexibly realize the transmission and conversion between the hydraulic energy of a constant-pressure network and the kinetic energy of the flywheel set by controlling the hydraulic secondary element, and can flexibly realize the storage and release of system energy under different drilling working conditions by controlling the flywheel set.
(2) The winch realizes the heave compensation function by adopting the combination of the plurality of quantitative hydraulic motors and the plurality of variable hydraulic motors, wherein the power between the quantitative hydraulic motors and the variable hydraulic motors is configured, so that the torque output by the variable hydraulic motors when overcoming the static load of a drill column part is always larger than the torque output by overcoming the inertia of the winch, the swash plate of the variable hydraulic motors can realize the switching between the working condition of the pump and the working condition of the motor without the zero crossing point, namely the winch can realize the driving and energy recovery functions by using the common unidirectional variable hydraulic motors, the good energy-saving effect is realized, meanwhile, the great use of hydraulic secondary elements is avoided, and the equipment cost is saved.
(3) The small-sized leather bag type energy accumulator is connected with the hydraulic constant pressure network, so that energy fluctuation in the process of converting flywheel set kinetic energy and hydraulic energy can be inhibited, the working pressure of a hydraulic motor of the winch is stabilized, and the heave compensation control performance and the energy recovery efficiency are improved; in addition, a power and control function loop can be provided for the hydraulic disc brake of the winch, a special hydraulic loop of the disc brake is saved, and the platform structure is simplified.
Drawings
FIG. 1: the invention discloses a schematic diagram of an energy-saving driving system of an ocean drilling compensation winch;
FIG. 2: the invention provides a structural schematic diagram of a compensation winch.
Description of the symbols:
1. a constant pressure variable pump; 2. a motor; 3. a one-way valve; 4. an oil filter; 5. an overflow valve; 6. an oil tank; 7. a pressure reducing valve; 8.1, a first pressure sensor; 8.2, a second pressure sensor; 9.1, a first electromagnetic directional valve; 9.2, a second electromagnetic directional valve; 9.3, a third electromagnetic directional valve; 10. a small bladder accumulator; 11.1, a first electro-hydraulic servo valve; 11.2, a second electro-hydraulic servo valve; 12.1, a first control hydraulic cylinder; 12.2, a second control hydraulic cylinder; 13. a PLC; 14. a moving reference unit; 15. a rotary encoder; 16.1, a first tilt sensor; 16.2, a second tilt sensor; 17.1, a first hydraulic secondary element; 17.2, a second hydraulic secondary element; 18. a coupling; 19. a flywheel set; 19.1, flywheel pieces; 19.2, a speed increaser; 19.3, an electromagnetic clutch; 20.1, a first power-off protection valve; 20.2, a second power-off protection valve; 21. a one-way overflow valve; 22. a one-way throttle valve; 23. a one-way pressure relief valve; 24. a fixed displacement hydraulic motor; 25. a variable displacement hydraulic motor; 26. a compensation winch; 27. hydraulic disc braking; 28. and a secondary gear reducer.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings and examples, in which it is to be understood that the embodiments described are merely illustrative of some, but not all embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the energy-saving driving system of the offshore drilling compensation winch of the invention comprises a constant-pressure variable pump 1, a motor 2, an oil tank 6, a pressure sensor, an electromagnetic directional valve, an electro-hydraulic servo valve, a control hydraulic cylinder, a PLC13, a motion reference unit 14, a rotary encoder 15, an inclination angle sensor, a hydraulic secondary element, a flywheel set 19, an electricity loss protection valve, a quantitative hydraulic motor 24, a variable hydraulic motor 25, a compensation winch 26, a hydraulic disc brake 27 and a secondary gear reducer 28; the pressure sensors comprise a first pressure sensor 8.1 and a second pressure sensor 8.2, the electromagnetic directional valve comprises a first electromagnetic directional valve 9.1, a second electromagnetic directional valve 9.2 and a third electromagnetic directional valve 9.3, the electro-hydraulic servo valve comprises a first electro-hydraulic servo valve 11.1 and a second electro-hydraulic servo valve 11.2, the control hydraulic cylinder comprises a first control hydraulic cylinder 12.1 and a second control hydraulic cylinder 12.2, the tilt angle sensor comprises a first tilt angle sensor 16.1 and a second tilt angle sensor 16.2, the hydraulic secondary elements comprise a first hydraulic secondary element 17.1 and a second hydraulic secondary element 17.2, and the power-off protection valve comprises a first power-off protection valve 20.1 and a second power-off protection valve 20.2.
Referring to fig. 1 and 2, a constant pressure variable pump 1 of the invention is mechanically connected with a motor 2, a motion reference unit 14 is fixed on a drilling platform, an oil inlet of the constant pressure variable pump 1 is connected with an oil tank 6, an oil outlet of the constant pressure variable pump 1 is divided into a plurality of branches after passing through a one-way valve 3 and an oil filter 4, one branch is respectively connected with a left cavity and a right cavity of a first electro-hydraulic servo valve 11.1 and a second electro-hydraulic servo valve 11.2 after passing through a pressure reducing valve 7, an A port and a B port of the first electro-hydraulic servo valve 11.1 are respectively connected with the left cavity and the right cavity of a first control hydraulic cylinder 12.1, an A port and a B port of the second electro-hydraulic servo valve 11.2 are respectively connected with the left cavity and the right cavity of a second control hydraulic cylinder 12.2, piston rods of the first control hydraulic cylinder 12.1 and the second control hydraulic cylinder 12.2 are respectively mechanically connected with a first hydraulic secondary element 17.1 and a second hydraulic secondary element 17.2, and a first inclination angle sensor 16.1 is respectively arranged on the piston rods of the first control hydraulic cylinder 12.1 and the second control cylinder 12, The second inclination angle sensor 16.2, the first inclination angle sensor 16.1 and the second inclination angle sensor 16.2 are respectively used for detecting the inclination angle signals of the swash plate of the first hydraulic quadratic element 17.1 and the second hydraulic quadratic element 17.2; the T ports of the first electro-hydraulic servo valve 11.1 and the second electro-hydraulic servo valve 11.2 are connected with the oil tank 6. The other branch of the constant-pressure variable pump 1 passes through a second electromagnetic directional valve 9.2 and then is respectively connected with a first hydraulic secondary element 17.1 and a second hydraulic secondary element 17.2, and the first hydraulic secondary element 17.1 and the second hydraulic secondary element 17.2 pass through a first power-off protection valve 20.1 and then are connected with a quantitative hydraulic motor 24. The other branch of the constant-pressure variable pump 1 passes through a second power-off protection valve 20.2 and then is connected with a variable hydraulic motor 25. The other branch of the constant-pressure variable pump 1 is connected with a small-sized leather bag type energy accumulator 10 through a first electromagnetic directional valve 9.1. The other branch of the constant pressure variable pump 1 is connected with a hydraulic disc brake 27 through a third electromagnetic directional valve 9.3 and a one-way pressure reducing valve 23. The quantitative hydraulic motor 24 and the variable hydraulic motor 25 are respectively mechanically connected with an input shaft of a secondary gear reducer 28 through a coupling 18, and power is transmitted to a compensation winch 26; two ends of the constant-pressure variable pump 1 are connected with overflow valves 5 in parallel, two ends of a quantitative hydraulic motor 24 and two ends of a variable hydraulic motor 25 are respectively connected with a one-way overflow valve 21 in parallel, and oil discharge ports of the quantitative hydraulic motor 24 and the variable hydraulic motor 25 are respectively connected with an oil tank 6 through a one-way throttle valve 22; a first pressure sensor 8.1 is arranged on an oil outlet trunk of the constant-pressure variable pump 1; an oil outlet of the hydraulic secondary element is provided with a second pressure sensor 8.2; the first hydraulic secondary element 17.1 and the second hydraulic secondary element 17.2 are mechanically connected with the flywheel set 19 through a coupling 18 respectively; the rotary encoder 15 is connected to the input shaft of the secondary gear reducer 28 for detecting the angular displacement signal of the compensating winch 26 for compensating movements.
In the embodiment of the invention, the variable hydraulic motor 25 is a common unidirectional variable motor, and the output torque of the motor for overcoming the static load of the drill string part is larger than the torque for overcoming the inertia output of the winch, so that the swash plate of the variable hydraulic motor 25 can realize the switching between the working condition of the pump and the working condition of the motor without the zero crossing point.
In the embodiment of the invention, the flywheel set 19 comprises a flywheel plate 19.1, a speed increaser 19.2 and an electromagnetic clutch 19.3, wherein the PLC13 sends commands to control the connection and disconnection of the electromagnetic clutch 19.3, and the number of the flywheel plates is switched according to different drilling working conditions. Wherein the speed increaser 19.2 is a bevel gear speed increaser.
In the embodiment of the invention, before the flywheel set 19 starts to work, the constant-pressure variable pump 1 drives the first hydraulic secondary element 17.1 and the second hydraulic secondary element 17.2 to work under the working condition of a motor through the pre-charging loop and the second electromagnetic directional valve 9.2 to perform pre-charging; in the actual working process, when the winch is accelerated, the flywheel set 19 serves as a load to drag the first hydraulic secondary element 17.1 and the second hydraulic secondary element 17.2 to work under the pump working condition to release energy; when the winch decelerates, the first hydraulic secondary element 17.1 and the second hydraulic secondary element 17.2 work under the working condition of the motor, and the inertia kinetic energy of a winch rotation system and partial drill string gravitational potential energy in the processes of lifting and lowering the drill string are converted into the kinetic energy of the flywheel set 19.
In the embodiment of the invention, a small-sized leather bag type energy accumulator 10 is connected to an oil outlet main line of the constant-pressure variable pump 1 to stabilize the system pressure, reduce the energy fluctuation when the mechanical energy and the hydraulic energy of a flywheel are converted, and provide power for a hydraulic disc brake 27 of a winch brake loop through a third electromagnetic directional valve 9.3 and a one-way pressure reducing valve 23.
The working principle of the invention is as follows:
the quantitative hydraulic motor 24 and the variable hydraulic motor 25 of the invention work in a constant pressure network consisting of the constant pressure variable pump 1 and the small-sized leather bag type energy accumulator 10, and the output torque and the rotating speed of the motors can be adjusted by adjusting the displacement of the variable hydraulic motor 25. When the ocean floating type drilling platform does periodic heave motion along with waves, the PLC13 compensates motion angular displacement signals according to the compensation winch 26 detected by the rotary encoder 15 and platform heave motion signals detected by the motion reference unit 14, and adjusts the displacement of the variable hydraulic motor 25 according to a formulated control scheme, so that the compensation winch 26 is driven to rotate in the forward and reverse directions to realize a heave compensation function. During the compensation process, the quantitative hydraulic motor 24 and the variable hydraulic motor 25 jointly drive a compensation winch 26; the quantitative hydraulic motor 24 is used for bearing a part of static load of the drill string, and in the process of lifting and lowering the drill string load of the compensation winch 26, the quantitative hydraulic motor 24 realizes the conversion between hydraulic energy in a constant pressure network and the gravitational potential energy of the drill string part through switching between the working condition of a pump and the working condition of a motor; the variable hydraulic motor 25 is used for overcoming the rest static load of the drill string and the inertial load of the compensation winch 26, and in the two combined motion processes of acceleration, deceleration, lifting and lowering of the drill string of the compensation winch 26, the conversion between the hydraulic energy in the constant-pressure network, the inertial kinetic energy of the rotary system of the compensation winch 26 and the partial gravitational potential energy of the drill string is realized through switching between the pump working condition and the motor working condition.
The invention utilizes the hydraulic secondary components and the flywheel set 19 to carry out energy conversion and storage in the process of recovering and releasing the load energy of the compensation winch 26 by the quantitative hydraulic motor 24 and the variable hydraulic motor 25. When the whole hydraulic motor of the compensation winch 26 is in an energy recovery state, the recovered load energy of the compensation winch 26 is converted into hydraulic energy to enter a constant pressure network, the pressure of the constant pressure network starts to rise, then the PLC13 controls the action of the electro-hydraulic servo valve according to a pressure signal detected by the pressure sensor and a swash plate inclination angle signal of a hydraulic secondary element detected by the inclination angle sensor and a well-established control scheme, the position of a piston rod of a control hydraulic cylinder is adjusted to change the inclination angle of the swash plate of the hydraulic secondary element, so that the hydraulic secondary element is in a motor working condition, and the hydraulic energy is converted into mechanical energy to be stored in the flywheel set 19 while the pressure of the constant pressure network is controlled to be stable. When the whole hydraulic motor of the compensation winch 26 is in an energy release state, the hydraulic energy in the constant-pressure network needs to drive the compensation winch 26 to do work, the pressure of the constant-pressure network begins to drop, then the PLC13 changes the inclination angle of the swash plate of the hydraulic secondary element by adjusting and controlling the position of the piston rod of the hydraulic cylinder according to the pressure signal detected by the pressure sensor and the inclination angle signal of the swash plate of the hydraulic secondary element detected by the inclination angle sensor, so that the hydraulic secondary element is in a pump working condition, and the mechanical energy stored in the flywheel set 19 is converted into the hydraulic energy while the pressure of the constant-pressure network is controlled to be kept stable, so that the energy is supplemented to the constant-pressure network and the hydraulic motor, and the. It should be noted that the hydraulic secondary components include a first hydraulic secondary component 17.1 and a second hydraulic secondary component 17.2, the hydraulic motors include a fixed-quantity hydraulic motor 24 and a variable-quantity hydraulic motor 25, the pressure sensors include a first pressure sensor 8.1 and a second pressure sensor 8.2, the tilt sensors include a first tilt sensor 16.1 and a second tilt sensor 16.2, the electromagnetic directional valves include a first electromagnetic directional valve 9.1 and a second electromagnetic directional valve 9.2, the electro-hydraulic servo valve includes a first electro-hydraulic servo valve 11.1 and a second electro-hydraulic servo valve 11.2, and the control hydraulic cylinders include a first control hydraulic cylinder 12.1 and a second control hydraulic cylinder 12.2.
The invention combines the flywheel energy storage technology and the hydraulic secondary regulation technology to be applied to the ocean drilling compensation winch, and the winch is driven by a system consisting of a one-way variable hydraulic motor, a quantitative hydraulic motor, a constant-pressure variable pump, a flywheel set, a hydraulic secondary element and the like, so that the heave compensation function is completed, and meanwhile, the periodic recovery and reutilization of the load gravitational potential energy of the drilling machine and the inertia kinetic energy of a winch rotation system are realized, the energy consumption of the compensation winch is effectively reduced, the energy utilization rate and the working efficiency are improved, and the equipment cost is reduced; the flywheel set and the hydraulic secondary set are combined to replace a traditional hydraulic energy accumulator and a traditional high-pressure working gas cylinder, so that the energy storage density can be improved, the load and the occupied space of a drilling platform are reduced, and the safety and the environmental protection performance under the marine working environment are improved.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention are to be considered within the scope of the invention.
Claims (7)
1. Energy-conserving actuating system of ocean drilling compensation winch, its characterized in that: the device comprises a constant-pressure variable pump, a motor, an oil tank, a pressure sensor, an electromagnetic directional valve, an electro-hydraulic servo valve, a control hydraulic cylinder, a PLC (programmable logic controller), a motion reference unit, a rotary encoder, an inclination angle sensor, a hydraulic secondary element, a flywheel set, a power-off protection valve, a quantitative hydraulic motor, a variable hydraulic motor, a compensation winch, a hydraulic disc brake and a secondary gear reducer; wherein, the pressure sensor comprises a first pressure sensor and a second pressure sensor, the electromagnetic directional valve comprises a first electromagnetic directional valve, a second electromagnetic directional valve and a third electromagnetic directional valve, the electrohydraulic servo valve comprises a first electrohydraulic servo valve and a second electrohydraulic servo valve, the control hydraulic cylinder comprises a first control hydraulic cylinder and a second control hydraulic cylinder, the tilt sensor comprises a first tilt sensor and a second tilt sensor, the hydraulic secondary components comprise a first hydraulic secondary component and a second hydraulic secondary component, the power-off protection valve comprises a first power-off protection valve and a second power-off protection valve, the constant pressure variable pump is mechanically connected with a motor, the motion reference unit is fixed on the drilling platform, the oil inlet of the constant pressure variable pump is connected with an oil tank, the oil outlet of the constant pressure variable pump is divided into a plurality of branches after passing through a one-way valve and an oil filter, a branch is connected with P ports of a first electro-hydraulic servo valve and a second electro-hydraulic servo valve respectively after passing through a pressure reducing valve, an A port and a B port of the first electro-hydraulic servo valve are connected with a left cavity and a right cavity of a first control hydraulic cylinder respectively, an A port and a B port of the second electro-hydraulic servo valve are connected with a left cavity and a right cavity of a second control hydraulic cylinder respectively, piston rods of the first control hydraulic cylinder and the second control hydraulic cylinder are mechanically connected with a first hydraulic secondary element and a second hydraulic secondary element respectively, a first inclination angle sensor and a second inclination angle sensor are arranged on piston rods of the first control hydraulic cylinder and the second control hydraulic cylinder respectively, and the first inclination angle sensor and the second inclination angle sensor are used for detecting inclination angle signals of a swash plate of the first hydraulic secondary element and the second hydraulic secondary element respectively.
The T ports of the first electro-hydraulic servo valve and the second electro-hydraulic servo valve are connected with an oil tank; the other branch of the constant-pressure variable pump passes through a second electromagnetic directional valve and then is respectively connected with a first hydraulic secondary element and a second hydraulic secondary element, and the first hydraulic secondary element and the second hydraulic secondary element pass through a first power-loss protection valve and then are connected with a quantitative hydraulic motor; the other branch of the constant-pressure variable pump passes through a second power-off protection valve and then is connected with the variable hydraulic motor; the other branch of the constant-pressure variable pump is connected with the small-sized leather bag type energy accumulator through a first electromagnetic reversing valve; the other branch of the constant-pressure variable pump is connected with the hydraulic disc brake through a third electromagnetic directional valve and a one-way pressure reducing valve; the quantitative hydraulic motor and the variable hydraulic motor are respectively mechanically connected with an input shaft of the secondary gear reducer through a coupler, and power is transmitted to the compensation winch.
Two ends of the constant-pressure variable pump are connected with overflow valves in parallel, two ends of the quantitative hydraulic motor and two ends of the variable hydraulic motor are respectively connected with one-way overflow valves in parallel, and oil discharge ports of the quantitative hydraulic motor and the variable hydraulic motor are respectively connected with an oil tank through one-way throttle valves; a first pressure sensor is arranged on an oil outlet trunk of the constant-pressure variable pump; an oil outlet of the hydraulic secondary element is provided with a second pressure sensor; the first hydraulic secondary element and the second hydraulic secondary element are respectively and mechanically connected with the flywheel set through a coupling; and the rotary encoder is connected with an input shaft of the secondary gear reducer and is used for detecting an angular displacement signal of the compensation winch for compensating motion.
2. The energy-saving driving system of the marine drilling compensation winch according to claim 1, wherein the variable hydraulic motor is a common unidirectional variable motor, and the output torque of the variable hydraulic motor for overcoming the static load of the drill string part is larger than the output torque for overcoming the inertia of the winch, so that the swash plate of the variable hydraulic motor can realize the switching between the working condition of the pump and the working condition of the motor without the zero crossing point.
3. The energy-saving driving system of the marine drilling compensation winch according to claims 1 and 2, wherein the flywheel set is arranged in a protective shell and comprises a flywheel plate, a speed increaser and an electromagnetic clutch, the speed increaser is connected with the flywheel plate through the electromagnetic clutch, a PLC sends out commands to control the connection and disconnection of the electromagnetic clutch, and the number of the flywheel plates is switched according to different drilling conditions.
4. The energy efficient drive system for an offshore drilling compensation winch according to claims 1 and 3, wherein the speed increaser is a bevel gear speed increaser.
5. The energy-saving driving system of the marine drilling compensation winch according to claim 1, wherein the constant-pressure variable pump drives the first hydraulic secondary element and the second hydraulic secondary element to work under the working condition of the motor through the second electromagnetic directional valve, and the flywheel set is pre-charged before the working is started.
6. The driving system of the offshore drilling compensation winch according to claim 1, wherein the small bladder type energy accumulator is connected with an oil outlet trunk line of the constant pressure variable pump and is used for stabilizing system pressure and reducing energy fluctuation when flywheel mechanical energy and hydraulic energy are converted.
7. The driving system of the offshore drilling compensation winch according to claim 1, wherein the small bladder type energy accumulator is connected with the hydraulic disc brake through the first electromagnetic directional valve, the third electromagnetic directional valve and the one-way pressure reducing valve to form a winch brake circuit and provide power for the hydraulic disc brake of the winch brake circuit.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184732A (en) * | 2020-12-31 | 2021-07-30 | 南通中远海运船务工程有限公司 | Floating type drilling energy-saving winch type heave compensation system and method based on flow control |
| CN114427551A (en) * | 2022-03-14 | 2022-05-03 | 合肥工业大学 | Energy recovery system of anchor and mooring equipment hydraulic system based on energy accumulator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010528913A (en) * | 2007-05-10 | 2010-08-26 | イートン コーポレーション | Hydraulic drive system including neutral drift compensation and temperature compensation under pressure limitation |
| CN101943263A (en) * | 2007-05-10 | 2011-01-12 | 伊顿公司 | Have meta drift compensation and the hydraulic transmission system that is used for the temperature correction of pressure limit |
| CN104627881A (en) * | 2015-03-04 | 2015-05-20 | 广东工业大学 | Super deep floating type drilling multifunctional energy-saving type heavy compensation winch and operation method thereof |
| CN105804675A (en) * | 2016-06-01 | 2016-07-27 | 中国石油大学(华东) | Hydraulic driving system for offshore drilling compensation winch |
| CN108278232A (en) * | 2018-02-05 | 2018-07-13 | 浙江大学 | A kind of passive heave compensation system of hydraulic cylinder type based on hydraulic transformer |
| CN110436344A (en) * | 2019-06-05 | 2019-11-12 | 天津大学青岛海洋技术研究院 | A kind of energy-saving winch type Active Heave Compensation System and method |
-
2020
- 2020-09-23 CN CN202011009980.3A patent/CN112125194B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010528913A (en) * | 2007-05-10 | 2010-08-26 | イートン コーポレーション | Hydraulic drive system including neutral drift compensation and temperature compensation under pressure limitation |
| CN101943263A (en) * | 2007-05-10 | 2011-01-12 | 伊顿公司 | Have meta drift compensation and the hydraulic transmission system that is used for the temperature correction of pressure limit |
| CN104627881A (en) * | 2015-03-04 | 2015-05-20 | 广东工业大学 | Super deep floating type drilling multifunctional energy-saving type heavy compensation winch and operation method thereof |
| CN105804675A (en) * | 2016-06-01 | 2016-07-27 | 中国石油大学(华东) | Hydraulic driving system for offshore drilling compensation winch |
| CN108278232A (en) * | 2018-02-05 | 2018-07-13 | 浙江大学 | A kind of passive heave compensation system of hydraulic cylinder type based on hydraulic transformer |
| CN110436344A (en) * | 2019-06-05 | 2019-11-12 | 天津大学青岛海洋技术研究院 | A kind of energy-saving winch type Active Heave Compensation System and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113184732A (en) * | 2020-12-31 | 2021-07-30 | 南通中远海运船务工程有限公司 | Floating type drilling energy-saving winch type heave compensation system and method based on flow control |
| CN114427551A (en) * | 2022-03-14 | 2022-05-03 | 合肥工业大学 | Energy recovery system of anchor and mooring equipment hydraulic system based on energy accumulator |
| CN114427551B (en) * | 2022-03-14 | 2023-06-30 | 合肥工业大学 | Energy accumulator-based energy recovery system of hydraulic system of anchor winch |
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